Here’s a very simple way to see if you’re system is a spam relay:
telnet relay-test.mail-abuse.org
Press enter and watch it go. Do be warned, though; if it turns out that you are a relay, it’ll be noted in the database.
tcpdump Tutoriallsof Tutorialfind and xargsDaniel Miessler | 1999-2010 | Share Alike
